When I was at the log in section, I had computer remember my site name and password a while ago so I typed D in and Dabomb118 came up (nothing odd) but underneath it came up pokepal118. (my odd username) So the Question is, why is pokepal118 there? I didn't make a new account.
The browser simply remembers you typing in that username in that box, so it pops up even though the account doesn't exist anymore. It's not a glitch, and Pokemaster can't do anything about it, really, as it's your browser and not the site.